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=== Diversity === Limiting the number of genotypes in a certain population can be deleterious to the ecosystem as a whole by shrink the potential genetic [[gene pool]].<ref>{{Cite journal |last1=Star |first1=Bastiaan |last2=Spencer |first2=Hamish G. |date=May 2013 |title=Effects of Genetic Drift and Gene Flow on the Selective Maintenance of Genetic Variation |journal=Genetics |volume=194 |issue=1 |pages=235β244 |doi=10.1534/genetics.113.149781 |pmid=23457235 |pmc=3632471 }}</ref> Low amount of genetic variation can lead to [[Extinction event|mass extinctions]] and [[endangered species]] because of the large impact one mutation can have on the entire population if there are only a few specific genes present throughout.
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